Malicious PDF — malware analysis report

Static analysis result for SHA-256 f25c881322db814c…

MALICIOUS

PDF

44.6 KB Created: 2020-09-06 16:51:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 00a6617b1bf82ac13dea1f89e00b57b2 SHA-1: a146ac343fdf137ad6dc1d3f3b7b57984c78a136 SHA-256: f25c881322db814c517bd26c1d0caa9ce56cf5f5575735fd409480c0cd5e2590
128 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious Link

The PDF contains a large number of external links, many of which are hosted on Shopify and appear to be part of a link farm designed to improve SEO for search terms like 'application for pan card offline form pdf'. One of these links, however, redirects to a known malicious domain (ttraff.cc), indicating a phishing or malware distribution attempt. The document body contains garbled text but includes the target search term and the malicious URL.

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/wix?keyword=application+for+pan+card+offline+form+pdf
    • https://cdn.shopify.com/s/files/1/0437/7634/4225/files/tusasejimafekizerevit.pdf
    • https://cdn.shopify.com/s/files/1/0433/4750/9416/files/xodenagogagigewujirinip.pdf
    • https://cdn.shopify.com/s/files/1/0432/1496/2848/files/patologia_humana.pdf
    • https://cdn.shopify.com/s/files/1/0430/7196/3296/files/matitadikufagez.pdf
    • https://static.usrfiles.com/ugd/32777b_5868b8c0786245b59c6770ba4d0d1463.pdf
    • https://static.usrfiles.com/ugd/c268f7_501326686a92487f964e0a0d77ae97ea.pdf
    • https://static.usrfiles.com/ugd/78daac_9af6b355d51c4366951d604c5f8f1b95.pdf
    • https://static.usrfiles.com/ugd/02beb7_c49a130a6b3f41c3bf8bdf0525fd58f6.pdf
    • https://cdn.shopify.com/s/files/1/0430/1045/7753/files/34159199750.pdf
    • https://cdn.shopify.com/s/files/1/0434/1576/5159/files/chemistry_principles_and_reactions.pdf
    • https://cdn.shopify.com/s/files/1/0433/1952/5534/files/holt_mcdougal_literature_grade_9_onl.pdf
    • https://cdn.shopify.com/s/files/1/0436/5582/3525/files/sozadezubanibivijowepol.pdf
    • https://static.usrfiles.com/ugd/cdfdba_97893b5378a244e3be370485256818a0.pdf
    • https://static.usrfiles.com/ugd/8a419d_a969a5f3b55b4ee2b85cec084c98b944.pdf
    • https://static.usrfiles.com/ugd/3826db_5ee4e6a2391d47f48740291becd03b31.pdf
    • https://static.usrfiles.com/ugd/ac72e0_81103bafc30c4984ba68186d09822b5a.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000070e3.bin
e41ee426058cf558c2bd3df1c5c88b0b6baecc939f0f9959571b1d35c7d4b5cc
pdf-font-stream PDF embedded font (sfnt) at offset 0x70E3 5112 bytes
font_01_sfnt_off0000823b.bin
91484595f558da8c21f5d5e1dd82019663ac79317cdbfc373e990e779e069854
pdf-font-stream PDF embedded font (sfnt) at offset 0x823B 10312 bytes